Tonight on Castle (ABC, 10/9c), Rick and Alexis (played by Nathan Fillion and Molly Quinn) will lower their respective shields in the name of solving a mystery together — and in doing so, take a first step in mending fences after their blow-up over the Pi situation.

Recounting the source of the father/daughter feud, which boiled over in the wake of a disastrous dinner party …READ MORE